Stainless steel valves are usually used in situations where the working medium is corrosive to a certain extent. For any kind of valve material, the ability to resist the corrosion of the working medium is relatively limited, and is affected by many factors. If the processing technology and heat treatment process used in the manufacturing process are appropriate, the corrosion resistance of this material is guaranteed. As for the concentrated nitric acid medium with a concentration of 98%, no matter what heat treatment process is used, this steel does not have corrosion resistance. Therefore, when selecting valve materials according to the properties of the working medium, the influence of various factors such as the concentration of the medium, the temperature, and the heat treatment process of the material on the corrosion resistance must be studied at the same time.
Stainless steel valves have become the valves which must be purchased in various industries, but there are very few domestic valve manufacturers that can meet international standards. Therefore, customers must ask the merchants to provide the production and delivery certificates of various stainless steel valves before purchasing them. This can reduce the purchase of substandard products. Nowadays, countries that manufactured stainless steel valves and sanitary valves with international standards mainly include Japan, Germany, the United States, and the United Kingdom.
A stainless steel valve is a control component in the pipeline fluid conveying system. It is used to change the passage section and the flow direction of the medium. It has the functions of diversion, cutting off, adjustment, throttling, preventing backflow, spit flowing, overflowing and pressure relief. A stainless steel valve is used for fluid control, and from the most simple globe valves to various valves used in extremely complex automatic control systems, there is a wide range of varieties and specifications. The nominal diameter of the valve ranges from an instrument valve with a very small size to an industrial valve with a diameter of 10 meters.
A stainless steel valve can be used to control various types of fluids such as water, steam, oil, gas, mud, various corrosive media, liquid metals and radioactive fluids. Its temperatures range from the ultra-low temperature of -269℃ to the high temperature of 1430℃. There are different operations for the stainless steel valve, such as manual, electric, hydraulic, pneumatic, worm gear, electromagnetic, electromagnetic-hydraulic, electric-hydraulic, pneumatic-hydraulic, spur gear and bevel gear drive operations. Under the action of pressure, temperatures or other forms of sensing signals, a stainless steel valve can act according to predetermined requirements, or simply open or close without relying on the sensing signal. The stainless steel valve relies on the drive or automatic mechanism to make the opening and closing parts lift, slide, swing or rotate to change the size of its flow channel area to realize its control.
WELDON VALVES is a professional valve supplier. We provide industrial valves including ball valves, gate valves, check valves, globe valves, safety valves, butterfly valves, plug valves, strainers, etc., with size from 1/2 inch to 60 inch, pressure range from Class 150 to 2500 LB.